.boingInUp {
  -webkit-animation-name: boingInUp;
          animation-name: boingInUp;
}
@-webkit-keyframes boingInUp {
  0% {
    opacity: 0;
    -webkit-transform-origin: 50% 0%;
            transform-origin: 50% 0%;
    -webkit-transform: perspective(800px) rotateX(-90deg);
            transform: perspective(800px) rotateX(-90deg);
  }
  
  50% {
    opacity: 1;
    -webkit-transform-origin: 50% 0%;
            transform-origin: 50% 0%;
    -webkit-transform: perspective(800px) rotateX(50deg);
            transform: perspective(800px) rotateX(50deg);
  }

  100% {
    opacity: 1;
    -webkit-transform-origin: 50% 0%;
            transform-origin: 50% 0%;
    -webkit-transform: perspective(800px) rotateX(0deg);
            transform: perspective(800px) rotateX(0deg);
  }
}
@keyframes boingInUp {
  0% {
    opacity: 0;
    -webkit-transform-origin: 50% 0%;
            transform-origin: 50% 0%;
    -webkit-transform: perspective(800px) rotateX(-90deg);
            transform: perspective(800px) rotateX(-90deg);
  }
  
  50% {
    opacity: 1;
    -webkit-transform-origin: 50% 0%;
            transform-origin: 50% 0%;
    -webkit-transform: perspective(800px) rotateX(50deg);
            transform: perspective(800px) rotateX(50deg);
  }

  100% {
    opacity: 1;
    -webkit-transform-origin: 50% 0%;
            transform-origin: 50% 0%;
    -webkit-transform: perspective(800px) rotateX(0deg);
            transform: perspective(800px) rotateX(0deg);
  }
}